Lakshya Education MCQs

Question: In a throttling process
Options:
A. Steam temperature remains constant
B. Steam pressure remains constant
C. Steam enthalpy remains constant
D. Steam entropy remains constant
Answer: Option C

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More Questions on This Topic :

Question 1. The major axis of elliptical manholes on the shell should be provided
  1.     Longitudinally
  2.     Circumferentially
  3.     On dished end
  4.     Anywhere
Answer: Option B
Question 2. An economiser is installed in a boiler primarily to
  1.     Superheat the steam
  2.     Reduce fuel consumption
  3.     Increase steam pressure
  4.     All of these
Answer: Option B
Question 3. An economiser is installed in a boiler primarily to
  1.     Superheat the steam
  2.     Reduce fuel consumption
  3.     Increase steam pressure
  4.     All of these
Answer: Option B
Question 4. The natural draught is produced by
  1.     Steam jet
  2.     Centrifugal fan
  3.     Chimney
  4.     Both (A) and (B)
Answer: Option C
Explanation :
Question 5. The object of producing draught in a boiler is
  1.     To provide an adequate supply of air for the fuel combustion
  2.     To exhaust the gases of combustion from the combustion chamber
  3.     To discharge the gases of combustion to the atmosphere through the chimney
  4.     All of the above
Answer: Option D
Question 6. The natural draught is produced by
  1.     Steam jet
  2.     Centrifugal fan
  3.     Chimney
  4.     Both (A) and (B)
Answer: Option C
Explanation :

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